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Crossref Stats Page: Updated on Jan 15, 2021

MetaData Deposit
Total Records in Database121,577,574
Total Prefixes18,977
Number of Journals86,655
Number of Books1,531,198
Number of Conference Proceedings76,666
Number of Journal DOIs87,042,427
Number of Book DOIs18,932,144
Number of Conference DOIs6,696,857
Number of Components4,731,911
Number of Standards Titles412,735
Number of Standards DOIs323,451
Number of Databases31,641
Number of Database DOIs2,052,947
Number of Articles with References Deposited49,725,577
Number of Cited-By Links1,119,977,464
Number of DOIs with at least one cited-by link (UNDER CONSTRUCTION)0
Number of Journal Title Level DOIs 40,448
Number of Book Title Level DOIs 1,554,570
Number of ConfProc Title Level DOIs 49,122
Number of Dissertation Title Level DOIs 349,570
Number of Report Title Level DOIs 658,970
Number of Standards Title Level DOIs 322,886
Number of Database Title Level DOIs 30,571
Number of Unique DOIs with FundRef data 2,947,660

Monthly Deposit Data

MonthTotal Records
Added
Total Current
Deposits
Total BackFile
Deposits
Total Records
Updated
(2018)9,874,1177,617,9912,256,12639,854,067
(2019)11,118,4618,583,2982,535,16350,533,616
(2020)12,462,5449,986,0052,476,53945,287,268
Dec905,525758,991146,5343,524,176
Jan955,456716,188239,2683,859,979
Feb1,047,147798,319248,8283,090,829
Mar923,508756,112167,3963,433,258
Apr1,266,1511,056,746209,4053,795,720
May887,638776,319111,3193,292,255
Jun927,909803,147124,7623,299,087
Jul1,047,460834,077213,3833,126,547
Aug873,497757,483116,0143,594,187
Sep1,103,079886,336216,7434,817,711
Oct997,236855,383141,8534,543,142
Nov1,062,042886,381175,6613,539,017
Dec1,371,421859,514511,9074,895,536
Jan470,220320,993149,2271,414,758


Monthly Query Data

MonthTotal MetaData
Queries
Total Matches%% by group
( Lib Pub Aflt )
Total DOI
Queries
Total Matches %
(2018)2194087319754,970,92334%51%43%43%1,823,393,3791,738,885,21895%
(2019)1,656,796,256783,711,58547%53%51%51%1,848,492,2611,716,370,97493%
(2020)1,523,069,914710,874,30447%48%49%49%1,590,084,0451,472,849,57693%
Dec121,433,69666,021,93254%45%54%71%104,799,73598,510,85794%
Jan110,538,14564,382,61958%49%56%69%112,727,280104,897,24493%
Feb98,693,81661,547,32962%50%59%74%125,112,383117,317,15894%
Mar125,939,23661,708,47349%52%49%75%141,311,118132,962,14894%
Apr163,869,67260,700,02737%53%47%76%148,994,557137,748,84292%
May143,139,28463,945,82845%51%44%78%141,096,791123,061,48387%
Jun147,525,80665,279,79544%50%43%74%124,779,394115,747,95293%
Jul131,115,28853,047,04940%47%40%67%122,865,216113,416,05792%
Aug142,863,13358,173,66241%48%48%70%116,270,019107,984,50493%
Sep123,549,99153,716,33243%48%53%71%140,308,115132,193,10594%
Oct119,202,20356,468,55047%46%54%66%145,576,877135,433,72593%
Nov111,306,54754,660,27349%43%51%65%145,617,216135,673,31193%
Dec105,326,79357,244,36754%42%52%63%125,425,079116,414,04793%
Jan52,917,23826,820,38051%42%52%72%53,484,08149,135,36992%


Monthly ORCID Auto-Update Data

MonthAuthors Granting
Permission
Works Added to
Authors Records
Dec28,498124,782
Jan37,755143,637
Feb40,713143,222
Mar33,800162,405
Apr34,329154,632
May58,655197,824
Jun47,975199,486
Jul40,326197,785
Aug57,917211,201
Sep52,382217,345
Oct46,009213,521
Nov51,510212,989
Dec50,877219,210
Jan25,442101,772

ORCID Totals

StatisticTotal
Total orcid/article pairs9,637,037
Total unique orcids3,102,255
Total works pushed5,255,451
Authors granting1,490,501
Authors denying630,346
Authors not responding997,439